Superman, The Beginning of the End [Illustrated version.] Part 25 (1)
While he was out, they decided to strip him completely, tone down the green lights, which was even making them a little woozy… hosed him off and refastened his bonds. (They had been warned not to keep him under too long. Twenty, thirty minutes at most, then go down to half power. It could be dangerous for all concerned. A stratagem that hadn’t been tried before.)